Ignition Key Lock: Replacement

Remove the ground cable from battery.
Remove the steering column. Refer to REMOVAL , Tilt Steering Column.
Secure the steering column in a vise. Remove the bolt with a drill.

Fig 1: Securing Steering Column In Vise
Courtesy of SUBARU OF AMERICA, INC.
Remove the ignition key lock.
Use a new torn bolt. Tighten the torn bolt to end of thread.

Fig 2: Tightening Torn Bolt To End Of Thread
Courtesy of SUBARU OF AMERICA, INC.